const city = {
  11: "北京",
  12: "天津",
  13: "河北",
  14: "山西",
  15: "内蒙古",
  21: "辽宁",
  22: "吉林",
  23: "黑龙江 ",
  31: "上海",
  32: "江苏",
  33: "浙江",
  34: "安徽",
  35: "福建",
  36: "江西",
  37: "山东",
  41: "河南",
  42: "湖北 ",
  43: "湖南",
  44: "广东",
  45: "广西",
  46: "海南",
  50: "重庆",
  51: "四川",
  52: "贵州",
  53: "云南",
  54: "西藏 ",
  61: "陕西",
  62: "甘肃",
  63: "青海",
  64: "宁夏",
  65: "新疆",
  71: "台湾",
  81: "香港",
  82: "澳门",
  91: "国外 ",
};

export function SIDCard (value) {
  var value, Y, JYM;
  var S, M, ereg;
  var idcard_array = new Array();
  idcard_array = value.split("");
  //空格
  if (!/^[^\s]*$/.test(value)) {
    return "身份证号码不能含有空格"
  }
  //地区检验
  if (city[parseInt(value.substr(0, 2))] == null) return "身份证号码地址编码错误"
  //身份号码位数及格式检验
  switch (value.length) {
    case 15:
      if ((parseInt(value.substr(6, 2)) + 1900) % 4 == 0 || ((parseInt(value.substr(6, 2)) + 1900) % 100 == 0 && (parseInt(value.substr(6, 2)) + 1900) % 4 == 0)) {
        ereg = /^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}$/; //测试出生日期的合法性
      } else {
        ereg = /^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$/; //测试出生日期的合法性
      }
      if (!ereg.test(value)) return "身份证出生日期超出范围或含有非法字符"
      break;
    case 18:
      //18位身份号码检测
      //出生日期的合法性检查[1-9][0-9]{5}([1][9][0-9]{2}|[2][0][0-9][0-9])
      //闰年月日:((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))
      //平年月日:((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))
      if (parseInt(value.substr(6, 4)) % 4 == 0 || (parseInt(value.substr(6, 4)) % 100 == 0 && parseInt(value.substr(6, 4)) % 4 == 0)) {
        ereg = /^[1-9][0-9]{5}([1][9][0-9]{2}|[2][0][0][0-9]|[2][0][1][0-9]|[2][0][0-2][0-1])((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}[0-9Xx]$/; //闰年出生日期的合法性正则表达式
      } else {
        ereg = /^[1-9][0-9]{5}([1][9][0-9]{2}|[2][0][0][0-9]|[2][0][1][0-9]|[2][0][0-2][0-1])((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}[0-9Xx]$/; //平年出生日期的合法性正则表达式
      }
      if (ereg.test(value)) { //测试出生日期的合法性
        //计算校验位
        S = (parseInt(idcard_array[0]) + parseInt(idcard_array[10])) * 7 + (parseInt(idcard_array[1]) + parseInt(idcard_array[11])) * 9 + (parseInt(idcard_array[2]) + parseInt(idcard_array[12])) * 10 + (parseInt(idcard_array[3]) + parseInt(idcard_array[13])) * 5 + (parseInt(idcard_array[4]) + parseInt(idcard_array[14])) * 8 + (parseInt(idcard_array[5]) + parseInt(idcard_array[15])) * 4 + (parseInt(idcard_array[6]) + parseInt(idcard_array[16])) * 2 + parseInt(idcard_array[7]) * 1 + parseInt(idcard_array[8]) * 6 + parseInt(idcard_array[9]) * 3;
        Y = S % 11;
        M = "F";
        JYM = "10X98765432";
        M = JYM.substr(Y, 1); //判断校验位
        let last = value.substr(value.length - 1, 1);
        if (last != 0) {
          if (!M == idcard_array[17]) return "身份证号码校验错误"
        }
      } else return "身份证出生日期超出范围或含有非法字符"
      break;
    default:
      return "身份证号码位数不对"
  }
  return null
}